I just need an explanation of which index best reflects the change in wealth for the investor as a whole. I promise to give a thumbs up. Thank you in advance for your help!

Stock A The table below shows the price per share for stocks A and B. There are 100 shares out- standing of stock A and 500 shares outstanding of stock B Stock December 31, 2017 $20 $10 December 31, 2018 $22 $5 Calculate the rate of return for (i) a price-weighted index, (ii) a value-weighted index (iii) an equal weighted index. Explain which index return best reflects the change in wealth for investors as a whole